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The Abernethy malformation — myriad imaging manifestations of a single entity

View Article: PubMed Central - PubMed

ABSTRACT

Abernethy malformation, also known as congenital extrahepatic portosystemic shunts (CEPS) is a rare clinical entity and manifests with different clinical symptoms. CEPS are abnormalities of vascular development where there is shunting of portal blood into the systemic venous system. Multidetector computed tomography (MDCT) is a fast and effective modality for evaluation of CEPS. CT displays all the information desired by the surgeon as well as the clinician including the anatomy of the splenic and superior mesenteric veins, size and site of the shunt, presence or absence of the portal vein radicles, and helps to plan the therapy and even the follow-up of these patients. Contrast-enhanced magnetic resonance imaging (MRI) has also emerged as a promising tool for the evaluation of liver lesions associated with the malformation. The Radiologist should be aware of the various imaging appearances of this entity including its complications. In this article, we describe the imaging appearances of CEPS, their complications, and their imaging appearances on CT and MRI. We have also described various associated anomalies.

No MeSH data available.


Related in: MedlinePlus

MRI of a 17-year-old boy (same patient in Figure 6), Axial imaging in T2WI (A) showing multiple hyperintense lesions and T1WI (B) showing multiple hypointense lesions and post contrast T1 arterial phase image (C) showing arterial enhancement and appearing hyperintense on T1 venous phase image (D) suggestive of multiple hepatic adenomas. Larger one shown as (*)
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Figure 10: MRI of a 17-year-old boy (same patient in Figure 6), Axial imaging in T2WI (A) showing multiple hyperintense lesions and T1WI (B) showing multiple hypointense lesions and post contrast T1 arterial phase image (C) showing arterial enhancement and appearing hyperintense on T1 venous phase image (D) suggestive of multiple hepatic adenomas. Larger one shown as (*)

Mentions: MRI, however may be superior, particularly with the advent of hepatobiliary contrast agents in the characterization of hepatic nodules [Figure 10].[3953] MRI does not expose the patients to ionizing radiation. MRI should be used for serial follow up of hepatic lesions.


The Abernethy malformation — myriad imaging manifestations of a single entity
MRI of a 17-year-old boy (same patient in Figure 6), Axial imaging in T2WI (A) showing multiple hyperintense lesions and T1WI (B) showing multiple hypointense lesions and post contrast T1 arterial phase image (C) showing arterial enhancement and appearing hyperintense on T1 venous phase image (D) suggestive of multiple hepatic adenomas. Larger one shown as (*)
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC5036336&req=5

Figure 10: MRI of a 17-year-old boy (same patient in Figure 6), Axial imaging in T2WI (A) showing multiple hyperintense lesions and T1WI (B) showing multiple hypointense lesions and post contrast T1 arterial phase image (C) showing arterial enhancement and appearing hyperintense on T1 venous phase image (D) suggestive of multiple hepatic adenomas. Larger one shown as (*)
Mentions: MRI, however may be superior, particularly with the advent of hepatobiliary contrast agents in the characterization of hepatic nodules [Figure 10].[3953] MRI does not expose the patients to ionizing radiation. MRI should be used for serial follow up of hepatic lesions.

View Article: PubMed Central - PubMed

ABSTRACT

Abernethy malformation, also known as congenital extrahepatic portosystemic shunts (CEPS) is a rare clinical entity and manifests with different clinical symptoms. CEPS are abnormalities of vascular development where there is shunting of portal blood into the systemic venous system. Multidetector computed tomography (MDCT) is a fast and effective modality for evaluation of CEPS. CT displays all the information desired by the surgeon as well as the clinician including the anatomy of the splenic and superior mesenteric veins, size and site of the shunt, presence or absence of the portal vein radicles, and helps to plan the therapy and even the follow-up of these patients. Contrast-enhanced magnetic resonance imaging (MRI) has also emerged as a promising tool for the evaluation of liver lesions associated with the malformation. The Radiologist should be aware of the various imaging appearances of this entity including its complications. In this article, we describe the imaging appearances of CEPS, their complications, and their imaging appearances on CT and MRI. We have also described various associated anomalies.

No MeSH data available.


Related in: MedlinePlus